1. Parsonnet V: The status of permanent pacing of the heart in the United States and Canada. In press
2. A decade of permanent pacing of the heart;Parsonnet;Cardiovasc Clin,1970
3. Sealed zinc-mercuric oxide cells for implantable cardiac pacemakers;Ruben;Ann NY Acad Sci,1969
4. Electronic control of an ailing heart;Greatbatch,1970
5. General Electric Company;Duehren;Personal communication,1971